CN108278203A - A kind of oil-free scroll formula air compressor - Google Patents

A kind of oil-free scroll formula air compressor Download PDF

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Publication number
CN108278203A
CN108278203A CN201810055695.1A CN201810055695A CN108278203A CN 108278203 A CN108278203 A CN 108278203A CN 201810055695 A CN201810055695 A CN 201810055695A CN 108278203 A CN108278203 A CN 108278203A
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CN
China
Prior art keywords
bearing block
air
scroll
fixed
movable orbiting
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Granted
Application number
CN201810055695.1A
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Chinese (zh)
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CN108278203B (en
Inventor
张剑良
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Zhejiang Ben Kai Pml Precision Mechanism Ltd
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Zhejiang Ben Kai Pml Precision Mechanism Ltd
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Priority to CN201810055695.1A priority Critical patent/CN108278203B/en
Publication of CN108278203A publication Critical patent/CN108278203A/en
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C18/00Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/02Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
    • F04C18/0207Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
    • F04C18/0215Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form where only one member is moving
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/04Heating; Cooling; Heat insulation
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2240/00Components
    • F04C2240/10Stators
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2240/00Components
    • F04C2240/20Rotors
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2240/00Components
    • F04C2240/50Bearings

Abstract

The invention discloses a kind of oil-free scroll formula air compressor, including installation pedestal, permanent magnet synchronous motor, bearing block, fixed scroll are fixed in installation pedestal successively, permanent magnet synchronous motor includes motor body and motor output shaft;Movable orbiting scroll is equipped between bearing block and fixed scroll, and bearing block is connect with movable orbiting scroll by main crankshaft and secondary crankshaft so that motor output shaft can drive movable orbiting scroll eccentric swing, to play the role of compressed air.Fan is equipped between bearing block and motor body, fan is air-cooled to be synchronized to movable orbiting scroll, fixed scroll, bearing block for directing the air to main air duct and secondary air duct.It is final to improve movable orbiting scroll, fixed scroll, the service life of bearing block, to improve the service life of complete machine.

Description

A kind of oil-free scroll formula air compressor
Technical field
The present invention relates to technical field of air compression, and in particular to a kind of oil-free scroll formula air compressor.
Background technology
Universal most air compressor or piston type air compressor on vehicle market at present, but existing piston Formula air compressor structure is huge and occupies the vehicle useful space, and the discharge of oil is accompanied by the course of work, is produced to environment Pollution is given birth to.So the scroll type air compressor for volume smaller occurred and having been discharged without oil that also comes into being in the market, nothing There are following advantages for oily scroll type air compressor:Volume smaller is to improve the service efficiency of inner space;Operational process Middle no oil discharge is to reduce environmental pollution;Low noise, with small vibration, air compression efficiency is high.
In the process of running, movable orbiting scroll is translatable oil-free scroll formula air compressor around the basic circle center of fixed scroll, and will Air between movable orbiting scroll and fixed scroll gradually reduces, and finally drains from escape pipe, completes the compression of air.But in above-mentioned sky During air pressure is contracted, amount of heat is will produce, if do not cooled down in time to movable orbiting scroll and fixed scroll, will cause to move, Fixed scroll expands deformation so that dynamic and static whirlpool disk occlusion is uneven, even results in the damage of dynamic and static whirlpool disk.And by the oil-free whirlpool The air that rotating air compressor compresses out is also often accompanied by higher temperature, also will to the later use of this partial high pressure air Have an adverse effect.
And existing oil-free scroll formula air compressor often adds a fan and induced duct outside one disk of motor, it will by fan Wind is guided to movable orbiting scroll back side by induced duct, is only carried out to movable orbiting scroll air-cooled.As Authorization Notice No. is:CN205207180U's A kind of electric direct connection oil-free vehicle-mounted air compressor, including host header, connect with host header motor, be mounted on motor one The fan of side, movable orbiting scroll are mounted on host header far from motor side, and fixed scroll is mounted on host header close to motor side.Fan is used In by the wind in outside to host header far from motor side, to be cooled down to movable orbiting scroll.
Due to only being cooled down to movable orbiting scroll, then the running temperature of fixed scroll will persistently be higher than the running temperature of movable orbiting scroll, It in the service life that the service life of fixed scroll will be caused to be less than movable orbiting scroll, eventually leads to machine life and does not grow.
Invention content
In view of the deficiencies of the prior art, the present invention intends to provide a kind of oil-free scroll formula air compressor, It can synchronize and movable orbiting scroll and fixed scroll are cooled down, the service life of movable orbiting scroll and fixed scroll be improved, to improve the service life of complete machine.
To achieve the above object, the present invention provides following technical solutions:A kind of oil-free scroll formula air compressor, including Installation pedestal is fixed with permanent magnet synchronous motor, bearing block, fixed scroll in installation pedestal successively, and permanent magnet synchronous motor includes motor Ontology, the motor output shaft being fixedly connected with motor body;Movable orbiting scroll is equipped between the bearing block and fixed scroll;Bearing block Middle part rotation is embedded with main crankshaft, and main crankshaft is rotatablely connected far from bearing block one end and movable orbiting scroll, and motor output shaft one end is worn It is fixedly connected in into bearing block and with the one end of main crankshaft in bearing block;Rotation is embedded with secondary crankshaft on bearing block, and secondary Bent axle is rotatablely connected far from bearing block one end and movable orbiting scroll;
Movable orbiting scroll is fixed with the dynamic whirlpool tooth of vortex shape far from bearing block side, and fixed scroll has reception room close to dynamic whirlpool tooth side recess And the quiet whirlpool tooth of vortex shape is fixed in reception room, dynamic whirlpool tooth puts in reception room and is intermeshed with quiet whirlpool tooth;Reception room Bottom is provided with air admission hole, and the side of fixed scroll is fixed with the air inlet pipe being connect with air admission hole, and the center of reception room bottom is opened There are venthole, the side of fixed scroll to be fixed with the escape pipe being connect with venthole;
Fixing sleeve is equipped with fan on motor output shaft and fan is between motor body and bearing block;Fixed scroll is far from movable orbiting scroll If being fixed with dry plate heat-dissipating fin on the side wall of side, bearing block is divulged information far from ventilation duct is equipped in installation pedestal one side wall If pipe one end is connected to the side of fan and the other end is connected to the gap location of dry plate heat-dissipating fin;If between dry plate heat-dissipating fin Gap together forms the main air duct for the air agitated by fan for water conservancy diversion with ventilation duct;
It is communicated with Zhi Liuguan on ventilation duct and Zhi Liuguan is connected into the gap of bearing block and movable orbiting scroll, bearing block and movable orbiting scroll Gap and tributary pipe form secondary air duct, are offered on bearing block for being connected to secondary air duct and extraneous air outlet.
By using above-mentioned technical proposal, motor output shaft drives main crankshaft rotation, then by main crankshaft drive movable orbiting scroll around Fixed scroll basic circle center eccentric center translation, due to the presence of secondary crankshaft, secondary crankshaft can limit movable orbiting scroll rotation.It is empty during this Gas enters in reception room, can form several diminishing compression chambers between movable orbiting scroll and fixed scroll, have just enter into reception room Interior air will be wrapped into maximum compression chamber;With the rotation of movable orbiting scroll, compression chamber will taper into and compressed air, Compressed air will finally be drained by venthole in escape pipe.
At the same time, fan carries out two air-cooled processes by synchronous.First:Air by under the water conservancy diversion of fan along main wind Road flows, that is, ventilation duct is first passed through, if then moving into the gap of dry plate heat-dissipating fin.This above-mentioned process plays heat-dissipating fin Wind-cooling heat dissipating effect has been arrived, the temperature of fixed scroll is reduced.
Second:Portion of air from water conservancy diversion in ventilation duct into secondary air duct in, that is, be introduced into Zhi Liuguan, enter back into bearing block with In the gap of movable orbiting scroll, since fixed scroll is enclosed in bearing block far from fan one end, then the gap of bearing block and movable orbiting scroll only has Two outlets, so the air flowed into from Zhi Liuguan will finally be discharged from air outlet.During this, the sky of this part flowing Gas cools down to bearing block and movable orbiting scroll.
Then above-mentioned setting, which can synchronize, cools down movable orbiting scroll, fixed scroll, bearing block, improves movable orbiting scroll, fixed scroll, bearing The service life of seat, to improve the service life of complete machine.
The further setting of the present invention is:The fan is equipped with cricoid wind collection slot and ventilation duct far from motor body side It is communicated in the slot bottom of wind collection slot.
By using above-mentioned technical proposal, fan drives air to generate kinetic energy, and wind collection slot as much as possible can then be collected This partial air is simultaneously conveyed into ventilation duct, to increase the air quantity in ventilation duct, to improve to movable orbiting scroll, fixed scroll, bearing The air cooling effect of seat.
The further setting of the present invention is:The slot bottom of the wind collection slot is obliquely installed and is used to the wind in wind collection slot being oriented to To ventilation duct.
By using above-mentioned technical proposal, the slot bottom of wind collection slot tilts in the wind collection slot for being conducive to will be close to installation pedestal position Wind be more smoothly directed in ventilation duct, to increase the air quantity in ventilation duct, to improve wind of the device to heat-dissipating fin Cold effect.
The further setting of the present invention is:Gap between the wind collection slot and bearing block is air inlet duct, and wind collection slot is close Motor body side is fixed with flow apron, fan be for conveyed after being oriented to the air in air inlet duct via flow apron into Radial fan in wind collection slot.
By using above-mentioned technical proposal, air first passes through the surface of bearing block before entering in wind collection slot, to reduce The temperature of bearing seating face, to make full use of air and extend the service life of bearing block.
The further setting of the present invention is:The air outlet external stability is useful for the air that will be flowed towards far from motor sheet The deflector that body direction is oriented to.
By using above-mentioned technical proposal, since air inlet duct is substantially annular in shape, and the air inlet of air outlet and air inlet duct Close setting in order to reduce the hot-air of air outlet out to proceeding to the influence of the cold air in air inlet duct, and is provided with water conservancy diversion Plate, for exporting the hot-air of air outlet towards far from motor body direction.
The further setting of the present invention is:The heat-dissipating fin is covered with wind shield, and wind shield far from fixed scroll one end There are the gaps for exporting air with the one end of heat-dissipating fin far from ventilation duct for a side far from ventilation duct.
By using above-mentioned technical proposal, time of contact that can be along long wind in heat-dissipating fin gap, so as to more as possible Take away heat, improve cooling efficiency.
The further setting of the present invention is:The wind shield is bolted on heat-dissipating fin.
By using above-mentioned technical proposal, wind shield is made to be detachably connected, is convenient for cleaning and replacement of the later stage to wind shield.
The further setting of the present invention is:Water conservancy diversion inclined-plane and water conservancy diversion inclined-plane are fixed between heat-dissipating fin described in adjacent two panels Positioned at heat-dissipating fin far from ventilation duct one end.
By using above-mentioned technical proposal so that the more smoothly export of wind energy between heat-dissipating fin improves outlet air effect Rate, to keep air-cooled process more smoothly, efficient.
The present invention has the following advantages:
1, can be synchronous air-cooled to fixed scroll, movable orbiting scroll, bearing block progress by the way that main air duct and secondary air duct is arranged, raising movable orbiting scroll, Fixed scroll, the service life of bearing block, to improve the service life of complete machine;
2, wind collection slot as much as possible can be collected by air that fan drives and be conveyed into ventilation duct, to increase ventilation duct Interior air quantity, to improve the air cooling effect to movable orbiting scroll, fixed scroll, bearing block.
Description of the drawings
Fig. 1 is schematic structural view of the invention;
Fig. 2 is the exploded perspective view of the present invention;
Fig. 3 is the vertical view of the present invention;
Fig. 4 is the diagrammatic cross-section at A-A in Fig. 3;
Fig. 5 is the enlarged diagram at A in Fig. 4;
Fig. 6 is the exploded perspective view of each component in fixed scroll in Fig. 2, shows the relationship of each component at heat-dissipating fin;
Fig. 7 is the partial cutaway schematic view of wind collection slot and ventilation duct in Fig. 2;
Fig. 8 is the structural schematic diagram of fan in Fig. 2;
Fig. 9 is the structural schematic diagram of movable orbiting scroll in Fig. 2;
Figure 10 is the structural schematic diagram of fixed scroll in Fig. 2;
Figure 11 is the structural schematic diagram of Fig. 2 bottom brackets.
Reference numeral:1, installation pedestal;2, permanent magnet synchronous motor;21, motor output shaft;22, motor body;3, fan; 31, frame is fanned;32, runoff flabellum;33, fixed ring flat-plate;4, bearing block;41, main crankshaft;411, first axle;412, the second axis;42、 Secondary crankshaft;421, third axis;422, the 4th axis;43, base bearing;44, supplementary bearing;45, driven bearing;46, air outlet;47, it leads Flowing plate;5, movable orbiting scroll;51, whirlpool tooth is moved;52, dynamic sealing item;6, fixed scroll;61, reception room;62, quiet whirlpool tooth;63, air admission hole; 64, venthole;65, static seal item;66, air inlet pipe;67, escape pipe;68, wind shield;7, wind collection slot;71, flow apron;8, lead to Air hose;81, heat-dissipating fin;82, water conservancy diversion inclined-plane;83, Zhi Liuguan;9, main air duct;91, secondary air duct;92, air inlet duct.
Specific implementation mode
With reference to attached drawing, the present invention will be further described.
A kind of oil-free scroll formula air compressor, it is solid successively in installation pedestal 1 with reference to figure 1 and Fig. 2, including installation pedestal 1 Dingan County is equipped with permanent magnet synchronous motor 2, bearing block 4, fixed scroll 6.Movable orbiting scroll 5 is equipped between bearing block 4 and fixed scroll 6.
Referring to figs. 2 and 5, permanent magnet synchronous motor 2 includes the motor that motor body 22 and spline are connected to motor body 22 Output shaft 21.Base bearing 43 and base bearing 43 are located at 4 center of bearing block there are one installations on bearing block 4, are gone back on bearing block 4 There are three supplementary bearing 44, axis spaced set of three supplementary bearings 44 around base bearing 43 for installation.Main song is installed in bearing block 4 Axis 41,41 one end of main crankshaft is rotatablely connected with movable orbiting scroll 5 by driven bearing 45, and 41 other end of main crankshaft is installed into base bearing 43.21 one end of motor output shaft is pierced into bearing block 4, and is connect with one end spline of the main crankshaft 41 in base bearing 43.Often A secondary crankshaft 42 is mounted on a supplementary bearing 44, and secondary crankshaft 42 is rotatablely connected with movable orbiting scroll 5 also by driven bearing 45.
With reference to figure 5, main crankshaft 41 includes 411 and second axis 412 of first axle disposed in parallel, and secondary crankshaft 42 includes parallel sets The third axis 421 and the 4th axis 422 set, the distance between axles between first axle 411 and the second axis 412 are equal to third axis 421 and the 4th Distance between axles between axis 422.Main crankshaft 41 drives movable orbiting scroll 5 around the basic circle center eccentric center translation of fixed scroll 6, due to secondary crankshaft 42 Presence, secondary crankshaft 42 can limit 5 rotation of movable orbiting scroll.
With reference to figure 2, movable orbiting scroll 5(With reference to figure 9)It is fixed with the dynamic whirlpool tooth 51 of vortex shape far from 4 side of bearing block, moves whirlpool tooth 51 tooth top is embedded with dynamic sealing item 52.
With reference to figure 10, recess has reception room 61 in fixed scroll 6, and the quiet whirlpool tooth 62 of vortex shape is fixed in reception room 61, The tooth top of quiet whirlpool tooth 62 is embedded with static seal item 65(With reference to figure 2).Air admission hole 63 is provided on 61 peripheral wall of reception room, fixed scroll 6 Side is fixed with the air inlet pipe 66 being connect with air admission hole 63(With reference to figure 6), the center of 61 bottom of reception room is provided with venthole 64, the side of fixed scroll 6 is fixed with the escape pipe 67 being connect with venthole 64(With reference to figure 6).
With reference to figure 2 and Figure 10, dynamic whirlpool tooth 51 can be mutually twisted with quiet whirlpool tooth 62.Basic circle of the movable orbiting scroll 5 relative to fixed scroll 6 During translation, air passes through air inlet pipe 66(With reference to figure 6)It enters in reception room 61, it can between movable orbiting scroll 5 and fixed scroll 6 Several diminishing compression chambers are formed, the air having just enter into reception room 61 will be wrapped into maximum compression chamber;With The rotation of movable orbiting scroll 5, compression chamber will taper into and compressed air, and compressed air will finally be drained by venthole 64 Escape pipe 67(With reference to figure 6)It is interior.
With reference to figure 2, fan 3 is equipped between motor body 22 and bearing block 4, motor output shaft 21 passes through fan 3 and and wind Fan 3 is connected by spline.
With reference to figure 6, fixed scroll 6 is far from movable orbiting scroll 5(With reference to figure 2)If being fixed with dry plate heat-dissipating fin on the side wall of side 81, if 81 upper end of dry plate heat-dissipating fin is connected with the ventilation duct 8 for being passed through air into the gap of heat-dissipating fin 81, ventilation duct 8 bolts are fixed on bearing block 4(With reference to figure 1)On.Heat-dissipating fin 81 has wind shield 68, wind shield far from fixed scroll 6 is one side closed 68 are formed and wind shield 68 is bolted with heat-dissipating fin 81 by two pieces.The a side of wind shield 68 far from ventilation duct 8 with There are the gaps for exporting air for the one end of heat-dissipating fin 81 far from ventilation duct 8(With reference to figure 4).Adjacent two panels heat-dissipating fin 81 Between be fixed with water conservancy diversion inclined-plane 82, and water conservancy diversion inclined-plane 82 is located at the one end of heat-dissipating fin 81 far from ventilation duct 8, and water conservancy diversion inclined-plane 82 makes Wind energy between heat-dissipating fin 81 is more smoothly exports to the external world.
With reference to figure 4, if dry plate heat-dissipating fin 81(With reference to figure 6)Gap and ventilation duct 8 together form main air duct 9, it is main Air duct 9 is used for the air that water conservancy diversion is agitated by fan 3.8 downside of ventilation duct is communicated with Zhi Liuguan 83, and the lower end connection of Zhi Liuguan 83 In into the gap of bearing block 4 and movable orbiting scroll 5, bearing block 4 together forms secondary air duct with the gap of movable orbiting scroll 5 and Zhi Liuguan 83 91, it offers on bearing block 4 for being connected to secondary air duct 91 and extraneous air outlet 46.46 external stability of air outlet have one piece substantially L-shaped deflector 47(With reference to figure 11), the air that deflector 47 is used to flow is towards far from the guiding of 22 direction of motor body.
With reference to figure 8, fan 3 includes fan frame 31, is fixed on the runoff flabellum 32 of 31 periphery of fan frame, and fan frame 31 is solid by spline It is scheduled on motor output shaft 21(With reference to figure 2)On, runoff flabellum 32 is close to motor body 22(With reference to figure 4)Side is fixed with fixed ring Plate 33.
With reference to figure 4 and Fig. 7, fan 3 is equipped with cricoid wind collection slot 7 far from 22 side of motor body, and ventilation duct 8 is communicated in The slot bottom of wind collection slot 7, ventilation duct 8 are bolted with wind collection slot 7.The slot bottom of wind collection slot 7 is obliquely installed, and is used for wind collection slot 7 Interior wind is directed in ventilation duct 8.Wind collection slot 7 is fixed with the flow apron 71 of annular, water conservancy diversion gear close to 22 side of motor body The section of plate 71 is substantially L-shaped.Gap between wind collection slot 7 and bearing block 4 is air inlet duct 92, and air inlet duct 92 is in communication with the outside, During rotation, the air in air inlet duct 92 can be guided by runoff flabellum 32 to outer ring fan 3, and in flow apron 71 It flows into wind collection slot 7, is then eventually entered into main air duct 9 under water conservancy diversion.
Specific implementation process:It is rotated by 22 driving motor output shaft 21 of motor body, motor output shaft 21 drives main crankshaft 41 rotations, then drive movable orbiting scroll 5 to be translatable around the basic circle of fixed scroll 6 by main crankshaft 41, due to the presence of secondary crankshaft 42, secondary crankshaft 42 5 rotation of movable orbiting scroll can be limited, then movable orbiting scroll 5 will be that radius is put down same using the distance between axles between first axle 411 and the second axis 412 It is eccentrically rotated on face.During this, the air in air inlet pipe 66 enters in reception room 61, between movable orbiting scroll 5 and fixed scroll 6 Several compression chambers being gradually reduced can be formed, the air having just enter into reception room 61 will be first trapped into maximum compression chamber; With the rotation of movable orbiting scroll 5, compression chamber will taper into and compressed air, this partial air will be finally discharged from venthole 64 To escape pipe 67.To complete the process of air compression.
At the same time, motor output shaft 21 drives fan 3 to rotate, and fan 3 carries out two air-cooled processes by synchronous.First: Air in air inlet duct 92 will flow under the water conservancy diversion of runoff flabellum 32 to 3 outer ring of fan, and under the water conservancy diversion of flow apron 71 It flows into wind collection slot 7, then finally converges in ventilation duct 8, and if being entered between dry plate heat-dissipating fin 81 by ventilation duct 8 In gap, finally flowed out between wind shield 68 and the gap of heat-dissipating fin 81.During this, the air of flowing is to heat-dissipating fin 81 play the role of wind-cooling heat dissipating, reduce the temperature of fixed scroll 6.
Second:Portion of air from water conservancy diversion in ventilation duct 8 into secondary air duct 91 in, that is, be introduced into Zhi Liuguan 83, enter back into axis In the gap of bearing 4 and movable orbiting scroll 5, since fixed scroll 6 is enclosed in bearing block 4 far from 3 one end of fan, then bearing block 4 and dynamic whirlpool Only there are two outlets in the gap of disk 5, so the air flowed into from Zhi Liuguan 83 will finally be discharged from air outlet 46.This process In, the air of this part flowing has carried out wind cooling temperature lowering to bearing block 4 and movable orbiting scroll 5.
The above is only a preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-mentioned implementation Example, all technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.It should be pointed out that for the art Those of ordinary skill for, several improvements and modifications without departing from the principles of the present invention, these improvements and modifications It should be regarded as protection scope of the present invention.

Claims (8)

1. a kind of oil-free scroll formula air compressor, including installation pedestal(1), installation pedestal(1)On to be fixed with permanent magnetism successively same Walk motor(2), bearing block(4), fixed scroll(6), permanent magnet synchronous motor(2)Including motor body(22)With motor body(22) The motor output shaft being fixedly connected(21);It is characterized in that:The bearing block(4)With fixed scroll(6)Between be equipped with movable orbiting scroll (5);Bearing block(4)Middle part rotation be embedded with main crankshaft(41), and main crankshaft(41)Far from bearing block(4)One end and movable orbiting scroll (5)Rotation connection, motor output shaft(21)Bearing block is pierced into one end(4)Interior and and main crankshaft(41)Embedded in bearing block(4)Interior One end is fixedly connected;Bearing block(4)Upper rotation is embedded with secondary crankshaft(42), and secondary crankshaft(42)Far from bearing block(4)One end with Movable orbiting scroll(5)Rotation connection;
Movable orbiting scroll(5)Far from bearing block(4)Side is fixed with the dynamic whirlpool tooth of vortex shape(51), fixed scroll(6)Close to dynamic whirlpool tooth (51)Side recess has reception room(61)And reception room(61)Inside it is fixed with the quiet whirlpool tooth of vortex shape(62), move whirlpool tooth(51)It puts in Reception room(61)It is interior and with quiet whirlpool tooth(62)Intermeshing;Reception room(61)Bottom be provided with air admission hole(63), fixed scroll(6)'s Side is fixed with and air admission hole(63)The air inlet pipe of connection(66), reception room(61)The center of bottom is provided with venthole (64), fixed scroll(6)Side be fixed with and venthole(64)The escape pipe of connection(67);
Motor output shaft(21)Upper fixing sleeve is equipped with fan(3)And fan(3)Positioned at motor body(22)With bearing block(4)It Between;Fixed scroll(6)Far from movable orbiting scroll(5)If being fixed with dry plate heat-dissipating fin on the side wall of side(81), bearing block(4)Far from peace Fill pedestal(1)Ventilation duct is installed in one side wall(8), ventilation duct(8)One end is connected to fan(3)Side and the other end connect As for dry plate heat-dissipating fin(81)Gap location;If dry plate heat-dissipating fin(81)Gap and ventilation duct(8)Together form use In water conservancy diversion by fan(3)The main air duct for the air agitated(9);
Ventilation duct(8)On be communicated with Zhi Liuguan(83)And Zhi Liuguan(83)It is connected into bearing block(4)With movable orbiting scroll(5)Gap It is interior, bearing block(4)With movable orbiting scroll(5)Gap and Zhi Liuguan(83)Form secondary air duct(91), bearing block(4)On open up it is useful In the secondary air duct of connection(91)With extraneous air outlet(46).
2. a kind of oil-free scroll formula air compressor according to claim 1, it is characterized in that:The fan(3)Far from electricity Machine ontology(22)Side is equipped with cricoid wind collection slot(7)And ventilation duct(8)It is communicated in wind collection slot(7)Slot bottom.
3. a kind of oil-free scroll formula air compressor according to claim 2, it is characterized in that:The wind collection slot(7)Slot Slanted floor is arranged and is used for wind collection slot(7)Interior wind is directed to ventilation duct(8)It is interior.
4. a kind of oil-free scroll formula air compressor according to claim 3, it is characterized in that:The wind collection slot(7)With axis Bearing(4)Between gap be air inlet duct(92), wind collection slot(7)Close to motor body(22)Side is fixed with flow apron (71), fan(3)To be used for air inlet duct(92)Interior air is via flow apron(71)It is conveyed after guiding into wind collection slot(7)It is interior Radial fan.
5. a kind of oil-free scroll formula air compressor according to claim 4, it is characterized in that:The air outlet(46)It is external The air for that will flow is fixed with towards far from motor body(22)The deflector that direction is oriented to(47).
6. a kind of oil-free scroll formula air compressor according to claim 1, it is characterized in that:The heat-dissipating fin(81)Far From fixed scroll(6)One end is covered with wind shield(68), and wind shield(68)Far from ventilation duct(8)A side and heat-dissipating fin (81)Far from ventilation duct(8)There are the gaps for exporting air for one end.
7. a kind of oil-free scroll formula air compressor according to claim 6, it is characterized in that:The wind shield(68)Bolt It is connected to heat-dissipating fin(81)On.
8. a kind of oil-free scroll formula air compressor according to claim 6, it is characterized in that:Radiating wing described in adjacent two panels Piece(81)Between be fixed with water conservancy diversion inclined-plane(82)And water conservancy diversion inclined-plane(82)Positioned at heat-dissipating fin(81)Far from ventilation duct(8)One end.
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CN113107844A (en) * 2021-05-28 2021-07-13 浙江蓝德华燕动力有限公司 Large-displacement low-pressure oil-free scroll compressor
CN114094766A (en) * 2021-11-30 2022-02-25 浙江水泵总厂有限公司 Generator heat radiation structure and have its generator
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CN109185128A (en) * 2018-10-23 2019-01-11 珠海格力节能环保制冷技术研究中心有限公司 A kind of scroll air compressor
CN113107844A (en) * 2021-05-28 2021-07-13 浙江蓝德华燕动力有限公司 Large-displacement low-pressure oil-free scroll compressor
CN114094766A (en) * 2021-11-30 2022-02-25 浙江水泵总厂有限公司 Generator heat radiation structure and have its generator
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